Reads vs writes in production database of web application

I recently think about CQRS-like patterns we partially used in current application, and pros’n’cons of migrating more towards full CQRS, which is mostly about separating reads from writes. Previously I assumed that in usual application “we may have probably 100 times more reads than writes”, what would qualify to have a value from these two models separation. I wanted to check it later on the production, but I forgot. Now we are close to start a big redesign of the whole application, and I’ve just remembered about that.

So, how does it look for real production? This is data from postgres pg_stat_database of one of my projects: